CN107560228A - One kind scanning defrosting formula air-source gas-fired heat pump - Google Patents
One kind scanning defrosting formula air-source gas-fired heat pump Download PDFInfo
- Publication number
- CN107560228A CN107560228A CN201610516659.1A CN201610516659A CN107560228A CN 107560228 A CN107560228 A CN 107560228A CN 201610516659 A CN201610516659 A CN 201610516659A CN 107560228 A CN107560228 A CN 107560228A
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- China
- Prior art keywords
- flue gas
- heat exchanger
- gas
- scanning
- defroster
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The invention discloses one kind to scan defrosting formula air-source gas-fired heat pump, including gas engine, freon compressore, four-way valve, indoor heat exchanger, choke valve and outdoor heat exchanger, characterized by further comprising flue gas triple valve and flue gas scanning defroster, the flue gas scanning defroster is the less device that flue gas can be sprayed along the heating surface to outdoor heat exchanger frosting of outdoor heat exchanger windward side loopy moving of an area, the input of flue gas triple valve and the exhaust opening of gas engine connect, the inlet end that one output end of flue gas triple valve scans defroster through fume pipe with flue gas is connected.Local circulation scan-type rapid frost melting is carried out to outdoor heat exchanger using the high-temperature flue gas of gas engine discharge so that air-source gas-fired heat pump can not shut down under low temperature or condition of ultralow temperature can defrosting and normal work, and without defrosting energy loss.It is the upgrading products of existing air-source gas-fired heat pump.
Description
Technical field
The present invention relates to a kind of air-source gas-fired heat pump driven using natural gas engine, one kind is particularly related to
Defrosting formula air-source gas-fired heat pump is scanned, belongs to air-conditioning technical and energy-saving field.
Background technology
Existing air-source gas-fired heat pump, mainly by gas engine, freon compressore, four-way valve, indoor heat exchanger,
Choke valve and outdoor heat exchanger composition, gas engine is the energy using natural gas, and driving freon compressore work (also can be first
Generator operation is driven, then is worked with generator electricity driving freon compressore), the exhaust opening of gas engine is through exhaust
Pipe discharge is outdoor, and when four-way valve is in indoor heating position, the output end of freon compressore is through four-way valve, indoor heat exchange
Device, choke valve and outdoor heat exchanger connect, and the other end of outdoor heat exchanger and the input of freon compressore connect, now
Indoor heat exchanger plays condenser, and the Freon liquid of condensation is depressured through flow controller, and the freon after throttling is in outdoor heat exchanger
Middle to evaporate and absorbed heat from air, caused guiding of the low pressure freon steam through four-way valve is inhaled by the input of compressor
Enter, complete circulation, you can the heat pump in outdoor lower temperature air to interior to ensure the needs of heating.Summer is by four-way
Valve, which is in, to indoor refrigeration position, makes the heat exchanger of outdoor turn into evaporator as condenser, indoor heat exchanger, you can room
Interior heat pump is into the air of outdoor to ensure the needs of room temperature lowering.It is a kind of energy-conserving and environment-protective because its capacity usage ratio is high
Type changes in temperature feeding mechanism.
This device does not have any problem when working in summer, and problem is that in the winter time, particularly outdoor temperature drops to 5 DEG C
When following, because to guarantee to absorb heat from air, now the heat transfer surface temperature of outdoor heat exchanger must drop to 0 DEG C or very
To lower, when air flows through the heat-transfer area less than 0 DEG C, moisture content in air just will frosting on the heat transmission surface, this frost layer is not
But heat output is reduced, and because the gap of air wing passage is all very narrow, only 1.5-2.5, frosting layer will be blocked up seriously
Air duct is filled in, so that evaporating pressure further declines, not only heating load is greatly reduced, and is finally forced automatic left alone without help machine.
It is traditionally that mode mainly has two kinds used by solving this problem, the first is the operating mode for changing unit using four-way valve,
Summer condition is actually to switch to the heat pump of interior to outdoor heat exchanger, becomes condenser, so as to defrosting of generating heat,
Winter heating's operating mode is rotated back into again after defrosting；Second of method is just embedded in the heat exchanger heat transfer face of outdoor during fabrication
Electrical heating elements, after frosting reaches to a certain degree autostop and connect electric heating element heating with defrosting.It is however, any
Mode, heating operations must all stop, and extra electric energy will be consumed for defrosting.The consumption meeting of this additional electrical energy
Account for the 10% of heating operations power consumption.
The content of the invention
The invention aims to solve to need often to shut down when above-mentioned existing air-source gas-fired heat pump works in the winter time
The problem of carrying out defrosting, design is a kind of can not shut down under low temperature condition can the structure of defrosting and normal work simply close
Reason, local defrosting is directly carried out in turn to the heating surface of outdoor heat exchanger frosting using the high-temperature flue gas of gas engine discharge
Scanning defrosting formula air-source gas-fired heat pump.
The present invention basic conception be using gas engine discharge high-temperature flue gas (its temperature may be up to 300-400
DEG C) defrosted.But because the flue gas flow is much smaller than the air mass flow for flowing through its outdoor heat exchanger, want using flue gas heat to family
The heating surface of external heat exchanger frosting all heats and prevents that frosting from being at all unworkable.Find after further study, it is outdoor
The face velocity of evaporator is not too high, generally 1.5-3m/s, so after defrosting, can be maintained one hour or so
Heat the cycle.If close on heat exchanger windward side installation one area is less can be along heat exchanger windward side loopy moving
Injection flue gas flue gas scanning defroster, directly wash away this localized heat transfer face with whole high-temperature flue gas, now defrosting heat transfer
The temperature difference is hundred times of frosting heat transfer temperature difference, and can flow through the stream of heat exchanger also above air with appropriately designed exhanst gas outlet flow velocity
Speed, you can make total heat-transfer capability of defrosting be accompanied hundreds of on frosting velocity.Make in structure design this wash away simultaneously
Cycle period is much smaller than the cycle of energy normal work after its conventional defrosting, and it is fast just minimal amount of frost will only to be contained on heat-transfer area
Speed is melted and blown away, and this defrosting can be carried out in the case of non-stop-machine completely, thus can thoroughly bottom solve it is existing
Air-source gas-fired heat pump needs often to shut down the problem of defrosting.
The scanning defrosting formula air-source gas-fired heat pump of the present invention, its structure include gas engine, freon compressore, four
Port valve, indoor heat exchanger, choke valve and outdoor heat exchanger, in addition to flue gas triple valve and flue gas scanning defroster, the cigarette
Gas scanning defroster is that an area is less can be along outdoor heat exchanger windward side loopy moving to outdoor heat exchanger knot
The device of the heating surface injection flue gas of frost, the input of flue gas triple valve and the exhaust opening of gas engine connect, flue gas three
The inlet end that one output end of port valve scans defroster through fume pipe with flue gas is connected, another output of flue gas triple valve
Outdoor is discharged through fume pipe or is discharged after heat-exchanging water tank outdoor in end.
Above-mentioned flue gas scanning defroster can be designed to various structures, be circular outdoor heat exchanger for outdoor heat exchanger
When, its flue gas scanning defroster can respective design include support tube and top into rotary-type scanning defroster, a kind of its structure
N-type of the pipe provided with rotation seat rotates air jet pipe, and the support tube is packed in the center of circular outdoor heat exchanger, and n-type rotates jet
Pipe is arranged on the top of support tube through rotation seat, and two nanubriums that n-type rotates air jet pipe are lifted on the outer of circular outdoor heat exchanger
Side, nanubrium inner side are provided with fumarole, and fumarole connects through nanubrium and push pipe with support tube upper end, and support tube lower end is that flue gas scans
The inlet end of defroster.
When being flat board type heat exchanger for outdoor heat exchanger, its flue gas scanning defroster can respective design into planar movement
Formula scans defroster, and a kind of its structure includes support tube, knuckle joint formula telescoping tube, air jet pipe and linear reciprocating apparatus, the line
Property reciprocating apparatus above the flat board type heat exchanger, air jet pipe is transversely mounted on linear reciprocating apparatus, is provided with below air jet pipe
Fumarole, one end of knuckle joint formula telescoping tube connect through elbow joint with air jet pipe, the other end of knuckle joint formula telescoping tube through elbow joint with
Support tube front end connects, and support tube rear end is the inlet end that flue gas scans defroster.
Above-mentioned linear reciprocating apparatus includes motor, screw mandrel, internal thread sliding block and support, and support is arranged on flat board type heat exchanger
On housing, screw mandrel is horizontally arranged at support both ends, and motor drive screw forward or reverse, internal thread sliding block is on screw mandrel, jet
Pipe is arranged on internal thread sliding block.
, can be in support tube built with gas cleaning ceramic ring for purifying smoke.
The scanning defrosting formula air-source gas-fired heat pump of the present invention, the high-temperature flue gas discharged using gas engine are changed open air
Hot device carries out local circulation scan-type rapid frost melting, so that air-source gas-fired heat pump can be under low temperature or condition of ultralow temperature not
Shut down can defrosting and normal work, thorough bottom, which solves existing air-source gas-fired heat pump, to be needed often to shut down the difficulty of defrosting
Topic.And without defrosting energy loss.It is the upgrading products of existing air-source gas-fired heat pump.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the A-A direction views in accompanying drawing 1；
Fig. 3 is a kind of structural representation of horizontal mobile scanning defroster of the present invention；
In figure:1 is gas engine, and 2 be freon compressore, and 3 be four-way valve, and 4 be indoor heat exchanger, and 5 be indoor wind
Machine, 6 be choke valve, and 7 be outdoor heat exchanger, and 8 be outdoor fan, and 9 be that n-type rotates air jet pipe, and 10 be support tube, and 11 be that flue gas is net
Change ceramic ring, 12 be rotation seat, and 13 be nanubrium, and 14 be flue gas triple valve.20 be knuckle joint formula telescoping tube, and 21 be air jet pipe, and 22 be flat
Plate type regenerator, 23 be screw mandrel, and 24 be internal thread sliding block, and 25 be support, and 26 be motor.
Embodiment
Referring to accompanying drawing 1, scanning of the invention defrosting formula air-source gas-fired heat pump, including the compression of gas engine 1, freon
Machine 2, four-way valve 3, indoor heat exchanger 4, choke valve 6 and outdoor heat exchanger 7, in addition to flue gas triple valve 14 and flue gas scanning defrosting
Device, flue gas scanning defroster are that an area is less can be along outdoor heat exchanger windward side loopy moving to family
The device of the heating surface injection flue gas of external heat exchanger frosting, the input of flue gas triple valve 14 and the smoke evacuation of gas engine 1
Mouth connection, an output end of flue gas triple valve 14 are connected through fume pipe with the inlet end of flue gas scanning defroster, flue gas three
Another output end of port valve 14 is discharged outdoor through fume pipe or discharged after heat-exchanging water tank outdoor.When low temperature defrosts, by flue gas
The position that triple valve 14 is placed in Fig. 1, it is such as frostless except when, flue gas triple valve 14 can be placed in fume pipe is discharged it is outdoor
Or the position of outdoor is discharged after heat-exchanging water tank.
Above-mentioned flue gas scanning defroster can be designed to various structures, be circular outdoor heat exchanger for outdoor heat exchanger
When, its flue gas scanning defroster can respective design include the He of support tube 10 into rotary-type scanning defroster, a kind of its structure
The n-type that push pipe is provided with rotation seat 12 rotates air jet pipe, and the support tube 10 is packed in the center of circular outdoor heat exchanger 7, and n-type turns
Dynamic air jet pipe is arranged on the top of support tube 10 through rotation seat 12, and two nanubriums 13 that n-type rotates air jet pipe are lifted on circular cell
The outside of external heat exchanger 7, the inner side of nanubrium 13 are provided with fumarole, and nanubrium 13 connects through rotation seat 12 with the upper end of support tube 10, support
The lower end of pipe 10 is the inlet end that flue gas scans defroster.For its structure referring to accompanying drawing 1 and accompanying drawing 2, n-type rotates air jet pipe can electricity consumption
Machine driving rotates around support tube 10, and motor driving can be realized with a variety of normal methods, also just not drawn in figure.
When being flat board type heat exchanger for outdoor heat exchanger, its flue gas scanning defroster can respective design into planar movement
Formula scans defroster, and a kind of its structure includes support tube 10, knuckle joint formula telescoping tube 20, air jet pipe 21 and linear reciprocating apparatus,
The linear reciprocating apparatus is transversely mounted on linear reciprocating apparatus mounted in the top of flat board type heat exchanger 22, air jet pipe 21, jet
The lower section of pipe 21 is provided with fumarole, and one end of knuckle joint formula telescoping tube 20 connects through elbow joint with air jet pipe 21, knuckle joint formula telescoping tube 20
The other end connected through elbow joint with the front end of support tube 10, the rear end of support tube 10 be flue gas scan defroster inlet end.
Above-mentioned linear reciprocating apparatus includes motor 26, screw mandrel 23, internal thread sliding block 24 and support 25, and support 25 is arranged on flat board
On the housing of type heat exchanger 22, screw mandrel 23 is horizontally arranged at the both ends of support 25, the forward or reverse of 26 drive screw of motor 23, internal thread
On screw mandrel 23, air jet pipe 21 is arranged on internal thread sliding block 24 sliding block 24.During work, internal thread sliding block drives air jet pipe along screw mandrel
It is reciprocating, you can high-temperature flue gas is sprayed with local circulation scan mode to the heating surface of outdoor heat exchanger frosting and removed
Frost.Adjustment reason motor speed can easily adjust the scanning arrangement degree of air jet pipe, to realize optimal defrosting effect.
, can be in support tube 10 built with gas cleaning ceramic ring 11 for purifying smoke.Make the flue gas for spraying to outdoor heat exchanger
More clean, after long-term work, can take out the ceramic ring of pollution can easily clean decontamination.
Claims (5)
1. one kind scanning defrosting formula air-source gas-fired heat pump, including gas engine, freon compressore, four-way valve, indoor change
Hot device, choke valve and outdoor heat exchanger, it is characterised in that also including flue gas triple valve and flue gas scanning defroster, the flue gas
Scanning defroster is that an area is less can be along outdoor heat exchanger windward side loopy moving to outdoor heat exchanger frosting
Heating surface injection flue gas device, the exhaust opening of the input of flue gas triple valve and gas engine connects, flue gas threeway
The inlet end that one output end of valve scans defroster through fume pipe with flue gas is connected, another output end of flue gas triple valve
Outdoor is discharged through fume pipe or is discharged after heat-exchanging water tank outdoor.
2. scanning defrosting formula air-source gas-fired heat pump as claimed in claim 1, it is characterised in that the flue gas scanning defrosting dress
The n-type rotation air jet pipe that rotation seat is provided with including support tube and push pipe is put, the support tube is packed in circular outdoor heat exchanger
Center, n-type rotate the top that air jet pipe is arranged on support tube through rotation seat, and two nanubriums that n-type rotates air jet pipe are lifted on circle
The outside of shape outdoor heat exchanger, nanubrium inner side are provided with fumarole, and nanubrium connects through rotation seat with support tube upper end, support tube lower end
The inlet end of defroster is scanned for flue gas.
3. scanning defrosting formula air-source gas-fired heat pump as claimed in claim 1, it is characterised in that the flue gas scanning defrosting dress
Put and be mounted in plate heat exchange including support tube, knuckle joint formula telescoping tube, air jet pipe and linear reciprocating apparatus, the linear reciprocating apparatus
Above device, air jet pipe is transversely mounted on linear reciprocating apparatus, and fumarole, one end of knuckle joint formula telescoping tube are provided with below air jet pipe
Connected through elbow joint with air jet pipe, the other end of knuckle joint formula telescoping tube connects through elbow joint with support tube front end, support tube rear end
The inlet end of defroster is scanned for flue gas.
4. scanning defrosting formula air-source gas-fired heat pump as claimed in claim 3, it is characterised in that the linear reciprocating apparatus bag
Motor, screw mandrel, internal thread sliding block and support are included, support is arranged on the housing of flat board type heat exchanger, and screw mandrel is horizontally arranged at support
Both ends, motor drive screw forward or reverse, on screw mandrel, air jet pipe is arranged on internal thread sliding block internal thread sliding block.
5. the scanning defrosting formula air-source gas-fired heat pump as described in Claims 2 or 3 or 4, it is characterised in that in the support tube
Equipped with gas cleaning ceramic ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516659.1A CN107560228A (en) | 2016-07-02 | 2016-07-02 | One kind scanning defrosting formula air-source gas-fired heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516659.1A CN107560228A (en) | 2016-07-02 | 2016-07-02 | One kind scanning defrosting formula air-source gas-fired heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107560228A true CN107560228A (en) | 2018-01-09 |
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ID=60969397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610516659.1A Pending CN107560228A (en) | 2016-07-02 | 2016-07-02 | One kind scanning defrosting formula air-source gas-fired heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560228A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107715A (en) * | 2019-06-02 | 2019-08-09 | 上海依呗科技有限公司 | A kind of the quick transformation method and transformation device of pressure pipeline |
| CN111964212A (en) * | 2020-07-24 | 2020-11-20 | 宁波奥克斯电气股份有限公司 | Control method, control device and air conditioning system |
| CN114646179A (en) * | 2022-03-16 | 2022-06-21 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner outdoor unit, air conditioner and electronic equipment |
-
2016
- 2016-07-02 CN CN201610516659.1A patent/CN107560228A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107715A (en) * | 2019-06-02 | 2019-08-09 | 上海依呗科技有限公司 | A kind of the quick transformation method and transformation device of pressure pipeline |
| CN111964212A (en) * | 2020-07-24 | 2020-11-20 | 宁波奥克斯电气股份有限公司 | Control method, control device and air conditioning system |
| CN114646179A (en) * | 2022-03-16 | 2022-06-21 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner outdoor unit, air conditioner and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180109 |
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| WD01 | Invention patent application deemed withdrawn after publication |